<ARTICLE>                     5
<LEGEND>                      
This schedule contains summary financial information extracted from Consolidated
Summary Financial Statements and Notes included in this Form 10-Q and is
qualified in its entirety by reference to such financial statements.
</LEGEND>
<MULTIPLIER>                        1,000

       
                             
<PERIOD-TYPE>                          3-MOS
<FISCAL-YEAR-END>                DEC-31-1999
<PERIOD-START>                   JAN-01-1999
<PERIOD-END>                     MAR-31-1999
<CASH>                                37,500
<SECURITIES>                           5,000
<RECEIVABLES>                        218,100
<ALLOWANCES>                          (5,800)
<INVENTORY>                          265,800
<CURRENT-ASSETS>                     670,200
<PP&E>                             2,225,600
<DEPRECIATION>                    (1,201,100)
<TOTAL-ASSETS>                     2,769,200
<CURRENT-LIABILITIES>                504,000
<BONDS>                              631,600
<PREFERRED-MANDATORY>                      0
<PREFERRED>                                0
<COMMON>                             117,000
<OTHER-SE>                         1,122,700
<TOTAL-LIABILITY-AND-EQUITY>       2,769,200
<SALES>                              603,100
<TOTAL-REVENUES>                     603,100
<CGS>                                471,100
<TOTAL-COSTS>                        559,800
<OTHER-EXPENSES>                           0
<LOSS-PROVISION>                           0
<INTEREST-EXPENSE>                      (800)
<INCOME-PRETAX>                       44,100
<INCOME-TAX>                          17,400
<INCOME-CONTINUING>                   27,200
<DISCONTINUED>                             0
<EXTRAORDINARY>                            0
<CHANGES>                                  0
<NET-INCOME>                          27,200
<EPS-PRIMARY>                            .26
<EPS-DILUTED>                            .26